CNPC is one of the largest oil companies in the world, doing business in China, Azerbaijan, Canada, Iran, Indonesia, Myanmar, Oman, Peru, Sudan, Niger, Thailand, Turkmenistan and Venezuela, the company specializes in the petroleum industry in general, such as oil and gas exploration and field development multi petrochemical industries, recording a total profit of about 299 billion US dollars last year, it occupies third place in the rankings.
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